Trolley-wheel.



No. 766,766. PATENTED AUG. 2, 1904.

' J. T. MOGAFFBRTY- TROLLEY WHEEL.

APPLIUA'HOH rnmnm. 2a, 1002.

H0 MODEL.

NITED STATES Patented August 2, 1904.

PATENT @rricn.

TROLLEY-WHEEL.

SPECIFICATION forming part of Letters Patent No. 766,766, dated August 2, 1904.

Application filed August 23, 1902.

To all whom, it may concern.-

Be it known that I, JOHN T. MCCAFFERTY, a citizen of the United States, residing at Terrace I. 0., Mifflin township, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Trolley-\Vheels, of which improvement the following is a specification.

This invention relates to certain new and useful improvements in trolley-wheels formed of several sections, which may be readily disengaged one from the other to permit of the insertion of the tread, which treads, experience has proven, wear very rapidly, rendering the wheel useless.

\Vith the above and other objects in view the invention consists in the novel construction, combination, and arrangement of parts to be hereinafter more fully described, and specifically pointed out in the claim.

In describing the invention in detail referonce is had to the accompanying drawings, forminga part of this specificatiomand wherein like numerals of reference indicate like parts throughout the several views,in which Figure 1 is a side elevation of the wheel. Fig. 2 is a central vertical sectional view thereof. Fig. 3 is an end elevation thereof.

The several sections 1 2 are provided with the usual angularly-disposed flanges 3 4t, gradually tapering downwardly. At the lower ends these flanges merge into outwardlybulged portions 5, the latter extending inwardly to form the hub 6. Each of the sections is constructed alike, and it will be noted from Fig. 2 of the drawings that there is a slight space between the inner ends of the hubs of the sections when the wheel is in its assembled position. Extending through this hub is a bushing or bearing 7, formed hollow throughout its length and provided with apertures 8, located between and registering with the space between the said hubs. This bearing extends the entire width of the wheel, and near its ends and without the hubs of the sections is provided with peripheral grooves 9, to be hereinafter referred to. A removable tread 10 is located between and engaged by the angularly-disposed flanges of the sec- Serial No. 120,799. (No model.)

tions, this tread having its periphery of an arc shape, which gradually merges into and extends flush with the said flanges. This removable tread has downwardly-inclined sides 11, which seat against the flanges 3 4 and extend to the lower termination thereof, being provided with slight cut-out portions 12, within which are received the screws 13, the latter passing through threaded apertures provided therefor in the flanges 3 I. The number of these screws employed may vary, being of a number sufflcient to retain the removable tread in its relative position. One of the sections is provided in its bulged portion with an oilinlet 14, by means of which oil may be fed to the reservoir 15, formed between the bulged portions of the several sections. I may employ cotton-waste or any other absorbent material, which is located within this oil-receptacle and will serve to permit the oil to gradually feed to the bearing through the oil-apertures 8. The bearing is adapted to have a snug fit within the hub of the sections, and after being driven into its normal position Babbitt metal 15 is poured between the periphery of the bearing and the seat 16, formed between it and the outer surface of the bulged portions, the Babbitt metal entering the peripheral grooves 9, forming a key, which will secure the Babbitt metal in its relative position to the bearing and in the seat, the Babbitt metal of course being poured while in a molten state, whereby the latter will readily enter the peripheral groove and harden.

While in the accompanying drawings I have shown the most practical embodiment of my invention, still it will be obvious that various changes may be made in the details of construction without departing from the general spirit and scope of my invention.

Having fully described my invention, what I claim as new,and desire to secure by Letters Patent, is

A trolley-wheel formed in two sections, each section being formed with central portions bulged and apertured, the portions of said sections exterior to the bulged portions being flared to form flanges, a removable tread seated between said flanges, means pass ing through said flanges for securing the sections together, a bushing arranged in the openings of said sections and having its endsprojecting without the same, the bulged portions of said sections being so disposed as to present concave spaces about the projecting ends of said bushing which are formed with grooves,

and a securing means for said bushing composed of Babbitt metal seated in the concave portions of said sections and engaging the grooves of said bushing,'said bulged portions constituting at their interior a chamber adapted to supply a lubricant to the interior of said bushing.

In testimony. whereof I havehereunto signed I 5 my name in the presence of two subscribing witnesses.

JOHN T. MOCAFFERTY.

In presence of- FRED. O. HENZI, M. HUNTER. 

